A:
Positive:
1 x 8726303311 x 793300313 x 6712541143 x 610231277 x 3150292203 x 396113047 x 286393601 x 24233
Negative:
-1 x -87263033-11 x -7933003-13 x -6712541-143 x -610231-277 x -315029-2203 x -39611-3047 x -28639-3601 x -24233
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 87,263,033, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 87,263,033 | |
| -1 | -87,263,033 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 87,263,033.
Example:
1 x 87,263,033 = 87,263,033
and
-1 x -87,263,033 = 87,263,033
Notice both answers equal 87,263,033
With that explanation out of the way, let's continue. Next, we take the number 87,263,033 and divide it by 2:
87,263,033 ÷ 2 = 43,631,516.5
If the quotient is a whole number, then 2 and 43,631,516.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 87,263,033 | |
| -1 | -87,263,033 |
Now, we try dividing 87,263,033 by 3:
87,263,033 ÷ 3 = 29,087,677.6667
If the quotient is a whole number, then 3 and 29,087,677.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 87,263,033 | |
| -1 | -87,263,033 |
Let's try dividing by 4:
87,263,033 ÷ 4 = 21,815,758.25
If the quotient is a whole number, then 4 and 21,815,758.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 87,263,033 | |
| -1 | 87,263,033 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 277 | 2,203 | 3,047 | 3,601 | 24,233 | 28,639 | 39,611 | 315,029 | 610,231 | 6,712,541 | 7,933,003 | 87,263,033 |
| -1 | -11 | -13 | -143 | -277 | -2,203 | -3,047 | -3,601 | -24,233 | -28,639 | -39,611 | -315,029 | -610,231 | -6,712,541 | -7,933,003 | -87,263,033 |
Here are some more numbers to try:
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